Census Data for Transportation Planning - AASHTO - Home

16 Pages·2005·1.05 MB·English

FINAL PROGRAM
Census Data for
Transportation Planning
Preparing for the Future
May 11–13, 2005
The National Academies Beckman Center
Irvine, California
Organizer
Transportation Research Board
Sponsors
Federal Highway Administration
Federal Transit Administration
Bureau of Transportation Statistics
National Cooperative Highway Research Program
Cosponsors
American Association of State Highway and Transportation Officials
U.S. Census Bureau
The Transportation Research Board is a division of
the National Research Council, which serves as an
independent adviser to the federal government and
TRANSPORTATION RESEARCH BOARD
others on scientific and technical questions of national
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importance. The National Research Council is jointly
500 Fifth Street, NW
administered by the National Academy of Sciences, the
Washington, DC 20001 National Academy of Engineering, and the Institute of
202-334-2934, Fax [phone] Medicine. The mission of the Transportation Research
Board—one of six major divisions of the National
Research Council—is to promote innovation and
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progress in transportation through research.
WELCOME
The decennial census has long provided the transportation
community with critical information needed to plan and
manage transportation programs—data on household and
workforce characteristics and journey-to-work flows. The
U.S. Census Bureau is now making the transition to an
ongoing annual household survey, the American Community
Survey (ACS), to collect information traditionally gathered
on the census long form. This conference provides a forum to
help interested parties understand how the transportation com-
munity uses the census and to evaluate how well the transition
to the ACS is likely to serve transportation planning and pro-
gramming processes.
The conference planning committee, working with U.S.
Ken Leonard
Department of Transportation (DOT) administrations and
Conference Chair
the Census Bureau, has fashioned a strong program to enhance
Cambridge Systematics, Inc.
dialogue among transportation professionals to
• Assess the uses of the 2000 census data, including case studies of applications by large and
small metropolitan planning organizations (MPOs), state DOTs, transit operating agencies,
and the private sector;
• Review the current plans for the ACS and assess its usefulness for transportation programs;
• Review ACS-related transportation research;
• Review and assess future transportation data needs and recommend improvements of census
methodology and products; and
• Recommend actions that federal, state, and regional agencies can take to improve
transportation agency use of current census products.
Thank you for your participation in this important event.
—Ken Leonard
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CONFERENCE PLANNING TEAM
CHAIR
Kenneth J. Leonard, Cambridge Systematics, Inc.
MEMBERS
John S. Adams, Professor, University of Minnesota
Dunbar Brooks, Baltimore Regional Transportation Board
Ken Cervenka, Program Manager, Travel Forecasting, North Central Texas Council of
Governments
George T. Duncan, Professor of Statistics, Carnegie Mellon University
Konstadinos G. Goulias, Professor, University of California, Santa Barbara
Thomas Kane, Executive Director, Des Moines Area Metropolitan Planning Organization
Paul Ong, Professor/Director, The Ralph & Goldy Lewis Center for Regional Policy Studies,
University of California, Los Angeles
Alan E. Pisarski, Consultant
Steven E. Polzin, Director, Public Transit Research, University of South Florida
Charles L. Purvis, Senior Transportation Planner/Analyst, Metropolitan Transportation
Commission
Jeff Tayman, Director of Technical Services, San Diego Association of Governments
Mary Lynn Tischer, Advisor to the Governor on Transportation Reauthorization, Virginia
Department of Transportation
LIAISONS
William Bannister, Bureau of Transportation Statistics
Ed Christopher, Federal Highway Administration
David Clawson, American Association of State Highway and Transportation Officials
Ron Fisher, Federal Transit Administration
Lawrence McGinn, Bureau of the Census
Elaine Murakami, Federal Highway Administration
John Neff, American Public Transportation Association
Phillip A Salopek, Bureau of the Census
Richard A. Weaver, American Public Transportation Association
Edward Weiner, U.S. Department of Transportation
STAFF
Thomas M. Palmerlee, Transportation Research Board
Brian Canepa, Transportation Research Board
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CENSUS DATA FOR TRANSPORTATION PLANNING
CONFERENCE
WEDNESDAY, MAY 11, 2005
7:30 a.m.
Continental Breakfast—Dining Room
8:00 a.m.
Session 1—Auditorium
Introduction and Charge to Conference
Welcome and Conference Objectives
Kenneth J. Leonard, Cambridge Systematics, Inc., Conference Chair
Census Bureau Tools for Transportation
Jay Waite, Associate Director for Decennial Census, U.S. Census Bureau
The conference opens with a general overview of the plans for reengineering the 2010 Census.
It will include a description of the ACS, an update on the funding and operational plans for the
2010 Census, and a discussion of how these plans affect the transportation community.
Transportation Policy Perspective
George E. Schoener, Deputy Assistant Secretary for Transportation Policy, U.S. Department of
Transportation
The transportation community faces many challenges for which solid data will be needed to
develop transportation policy options and programs. In the past, the DOT has had a successful
partnership with the Census Bureau in collecting some of these data. In the future, the DOT
expects to continue this partnership to evaluate past data and make improvements to ensure
that the ACS provides useful data to address transportation issues at the federal, state, and local
levels.
State Department of Transportation Perspective
Deb L. Miller, Secretary, Kansas Department of Transportation
Chair of the American Association of State Highway and Transportation Officials’ Standing
Committee on Planning and a former planning director, Secretary Miller will stress the
importance of census data for developing transportation programs for state DOTs and their MPO
partners. She will challenge participants to develop approaches to meet the data needed for
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The National Cooperative Highway Research Program (NCHRP) has provided 02 ,
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9:30 a.m.
Break—Atrium
10:00 a.m.
Session 2—Auditorium
Using Census Data for Transportation
Ken Cervenka, North Central Texas Council of Governments, presiding
This session focuses on the importance of an accurate worker count and on how work travel
relates to daily travel patterns. Experiences with the use of national censuses from other
countries are also explored. Following a discussion period and overview of the poster session,
the charge for the breakout workshops will be announced.
It’s All About the Workers: The Importance of Comprehensive Worker Counts
Alan E. Pisarski, Consultant
Transportation’s central element of interest in the census journey-to-work data set is the
worker, including that worker’s characteristics and behavior. Given that, getting the count and
characteristics of workers right is essential. This presentation examines potential gaps in our
knowledge of the workforce. It explores future alternatives to improve the breadth and depth of
our knowledge about workers.
Improving the Quality of Labor Force Estimates from the American Community Survey
by Measuring and Understanding the Differences Between the Labor Force Estimates of
Census 2000 and the American Community Survey and Those of the Current Population
Survey
Thomas J. Palumbo, Chief, Labor Force and Transfer Program Statistics, Housing and
Household Economic Statistics Division, U.S. Census Bureau
Census 2000 tended to underestimate employment and to overestimate unemployment relative
to the Current Population Survey (CPS), which is generally considered to be the standard of
quality for household-survey estimates of employment status. To a lesser but still significant
degree, the same tendency marks the relationship between the CPS and the ACS, whose methods
of measuring the labor force are closely patterned after those of Census 2000. This presentation
gives an overview of the differences, the research findings on their causes, and the steps being
taken to improve the ACS data. The presentation describes the results of the work of the
Census Bureau, in collaboration with other government agencies, to develop an improved set of
questions, which the Census Bureau plans to include in the 2006 content test for the ACS, and, if
those questions are successful, to implement in the 2008 ACS.
The Journey to Work in the Context of Daily Travel (Sides) (Full Paper)
Nancy McGuckin, Travel Behavior Analyst
5 While work trips are declining as a share of all trips, the journey to work still appears to be a
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Census Data for Transportation Planning: Preparing for the Future 6
International Experience in Journey-to-Work Data from National Censuses (Sides) (Full Paper)
Ram M. Pendyala, University of South Florida
This summary of a commissioned paper documents census experiences from other countries.
Experiences of transportation analysts and survey researchers from these countries provide
valuable background for a discussion about approaches in the United States.
Discussion
Rapporteur of Application Posters (Sides) (Full Paper)
Ed Christopher, Federal Highway Administration
This presentation provides a “road map” to help conferees navigate through the posters. Many of
the questions and discussions surrounding the ACS deal with the use and application of the data.
The poster session is designed to provide attendees with a common understanding of the breadth
of census applications in the transportation community and to stimulate discussion.
Charge to the Breakout Workshops
Kenneth J. Leonard, Cambridge Systematics, Inc., Conference Chair
12:00 noon
Lunch—Dining Room
12:45 p.m.
Session 3—Atrium
Application Poster Session
The poster session addresses the census data used in the application, the way they were used,
the value created, and the problems or issues encountered. Among the types of applications are
descriptive analysis and reporting, GIS analysis, travel modeling and microsimulation, public
involvement, and special studies, such as transit service planning and emergency preparedness
planning.
1. The PUMS and IPUMS of the 2000 Census
Edreece Azimi, Virginia Department of Transportation
2. ACS Data in the Analysis of Race and Ethnicity—Specific Travel Behavior
Joost Berman and Siim Soot, University of Illinois at Chicago
3. Florida Journey to Work GIS Website
Martin Catala, University of South Florida
4. Comparison of 2000 JTW Census Data, Gravity Model, and O-D SMARTRAQ M
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Laura Chen and Guy Rousseau, Atlanta Regional Commission –
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5. Smart Moves: Utilizing Census Data for Transit Planning
Caitlin Cottrill, Mid–America Regional Council
6. Environmental Justice for Long-Range Regional Transportation Plans: Using Census
Data to Target Communities of Concern
Rachel Gossen, Metropolitan Transportation Commission
7. TriMet’s Transportation Investment Plan (TIP): Ensuring Transit Equity with the
U.S. Census
Ida Hardin, Tri–County Metropolitan Transportation District of Oregon
8. Using the American Community Survey to Monitor the State of the System
Shimon Israel, Metropolitan Transportation Commission
9. How Census 2000 and Census Transportation Planning Package (CTPP) 2000 Data
Helped Us in the Use of Regional Travel Demand Forecast Model
Sharon Ju, Houston–Galvestion Area Council
10. Adding a Land Use Class Dimension to Correct, Improve, and Enlarge Employment
Data in the ACS
Edward Limoges, Consultant
11. Comparing Decennial Flow Data to Place of Work Data from the Local Employment
Dynamic Program
Wende Mix, Buffalo State College
12. Synthesizing Parcel-Level Households Using Census 2000 Data
Delores Muller, Southeast Michigan Council of Governments
13. A Compendium of 2000 Census Commute Analyses for the Hampton Roads Region
Andrew Pickard, Hampton Roads Planning District Commission
14. Getting Around Rounding and Suppression Issues with CTPP
Kristen Rohanna, San Diego Association of Governments
15. Enhanced Inputs for Travel Demand Modeling: Using American Community Survey
(ACS) with Land Cover Data
Saket Sarraf, Varkki George Pallathucheril, Zhanli Sun, and Brian Deal, University of
Illinois at Urbana Champaign
16. Size Matters: Using Census Block, Block-Group and Tract Polygons in Transit
Planning
Jesse Simon, Los Angeles County Metropolitan Transportation Authority
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17. Disclosure and Utility of Census Journey-to-Work Flow Data from the American
Community
Nandu Srinivasan and Ed Christopher, Federal Highway Administration
18. Using Census Data to Develop a New Kentucky Statewide Traffic Model
Kenneth Walker, Wilbur Smith Associates, and Amy Thomas, Kentucky Transportation
Cabinet
19. Using Census Data to Examine the Pedestrian Friendliness of the Built Environment
Hannah Young and Daniel Rodriquez, University of North Carolina, Chapel Hill
20. Evaluation of CTPP 2000 for the Delaware Valley Region
Thabet Zakaria, Delaware Valley Regional Planning Commission
1:30 p.m.
Session 4—Breakout Rooms
Workshop on Census 2000 Applications: What Worked and What Didn’t Work
The poster session and an NCHRP project have documented census data uses. Census data
products most used by the transportation community following Census 2000 include Summary
File 3, CTPP 2000, and Census 2000 Public Use Microdata Sample (PUMS). The Census
Bureau also conducted a test of the ACS in two ways: a national survey in 1,200 counties,
sometimes called the supplemental survey, and a test in 36 counties to test small geographic
reporting (tracts). These small breakout sessions are devoted to sharing information on the data:
use, applications, and problems and benefits.
3:30 p.m.
Break—Atrium
4:00 p.m.
Session 5—Auditorium
Transitioning to the ACS
Paul Ong, University of California, Los Angeles, presiding
This panel discusses the operational plans for the ACS, how it will replace the decennial long
form, and the general timetable for collecting and disseminating ACS data. The list of topics
includes sample selection, the trimodal data collection system, questionnaire design, data
processing and coding, statistical weighting and estimating, and data products. The session also
covers new opportunities for the transportation community that current and timely annual data
present.
Status Report on the Operations and Plans for the ACS
Lawrence McGinn, Chief of the American Community Survey Office, U.S. Census Bureau M
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Sample Design, Estimation, and Weighting in the ACS
David Hubble, Assistant Division Chief, Demographic Statistical Studies Division, U.S. Census
Bureau
Hubble will provide a general overview of the statistical aspects of the survey. He will explain
the sample selection, including the oversampling for nonresponse, the statistical weighting, and
the estimation procedures.
ACS Data Products for Use in Transportation Planning
Phillip Salopek, Chief, Journey to Work and Migration Statistics Branch, U.S. Census Bureau
This overview will emphasize the differences between the ACS data products and the Census
2000 products.
Overview of the Local Employment Dynamics (LED) Program at the U.S. Census Bureau
Jeremy Wu, Project Manager, LED Program, Demographic Surveys Division, U.S. Census
Bureau
Wu will preview the LED presentation in Session 8.
5:30 p.m.–6:30 p.m.
Reception—Fountain Courtyard
THURSDAY, MAY 12, 2005
8:00 a.m.
Continental Breakfast—Dining Room
8:30 a.m.
Session 6—Auditorium
Issues and Usage of the ACS for Transportation
George T. Duncan, Carnegie Mellon University, presiding
This session presents the results of several research projects involving current or future use of
census data for transportation.
Learning to Use the ACS for Transportation Planning: Key Concepts and Potential
Products
Kevin Tierney, Cambridge Systematics, Inc.
NCHRP initiated a project that will be nearing completion by conference time: to develop a
practitioner guidebook for incorporating ACS data into the transportation planning processes
at national, state, metropolitan, and local levels. The guidebook will evaluate ACS data and
05 products and demonstrate their uses within a wide range of transportation planning applications.
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